Networking - IP Routing - Discussion

Discussion :: IP Routing - IP Routing (Q.No.3)

3. 

Which statement is true regarding classless routing protocols?

  1. The use of discontiguous networks is not allowed.
  2. The use of variable length subnet masks is permitted.
  3. RIPv1 is a classless routing protocol.
  4. IGRP supports classless routing within the same autonomous system.
  5. RIPv2 supports classless routing.

[A]. 1, 3 and 5
[B]. 3 and 4
[C]. 2 and 5
[D]. None of the above

Answer: Option C

Explanation:

Classful routing means that all hosts in the internetwork use the same mask. Classless routing means that you can use Variable Length Subnet Masks (VLSMs) and can also support discontiguous networking.

Deepak Kumar Singh said: (Mar 25, 2015)  
I want to know about true regarding classless routing protocols in detail that what is the mean and RIPv1 is a classless routing protocol how can you say.

V Vpavan said: (May 29, 2015)  
I need about difference between mask and sub mask?

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